Photochemical performance of ZnO nanostructures in dye sensitized solar cells

被引：23

作者：

Das, Partha Pratim ^{[1
,3
]}

Mukhopadhyay, Soumita ^{[1
,3
]}

Agarkar, Shruti A. ^{[2
,3
]}

Jana, Arpita ^{[1
]}

Devi, P. Sujatha ^{[1
,3
]}

机构：

[1] CSIR Cent Glass & Ceram Res Inst, Nanostruct Mat Div, Kolkata 700032, India

[2] CSIR Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India

[3] CSIR NISE, New Delhi, India

来源：

SOLID STATE SCIENCES | 2015年 / 48卷

关键词：

ZnO; Structural defects; DSSC; Efficiency; Emission; TRANSPORT; RECOMBINATION; EFFICIENCY;

D O I：

10.1016/j.solidstatesciences.2015.08.014

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this work, the photoconversion efficiencies of ZnO having diverse microstructures and structural defects have been investigated. A conversion efficiency of 138% was achieved for the DSSCs fabricated with as prepared ZnO nanorods having minimum vacancy defects and a favourable one dimensional directional pathway for electron conduction. The DSSCs fabricated with ZnO nanoparticles exhibited relatively low conversion efficiency of 1.004% probably due to multiple trapping/detrapping phenomena within the grain boundaries and ZnO flowers though exhibited a high dye adsorption capability exhibited the lowest conversion efficiency of 0.59% due to a high concentration of structural defects. Based on the experimental evidences, we believe that the type of defects and their concentrations are more important than shape in controlling the overall performance of ZnO based DSSCs. (C) 2015 Elsevier Masson SAS. All rights reserved.

引用

页码：237 / 243

页数：7

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